Automatic speed regulator



July 20 1926.

T, P. POUGET AUTOMATIC SPEED nseumwoa Filed April 19, 1925- Patented July 1926.

UNITED STATES 1,593,354 PATENT OFFICE.

TIMOTHEE PIERRE POUGE'I, Q1 LAVERGNE PAR RIEUPEYFOU, FRANCE.

AUTOMATIC SPEED REGULATOR.

Application filed Apr-i119, 1923, Serial'No. 633,285, and in France April 21, 1822.

The invention relates to automatic speed regulators, more especially for use with machines actuating electric current generators. The object of the invention is to provide improved means for such regulation of simple construction and which is reliable 'in operation.

The functioning of my improved regulator is based upon the neutralization of two motions. one of which is imparted regularly by any suitable apparatus and tends to open a valve or start an element arranged ,to start a machine; the other motion bein derived'from the machine to be regulate and tending to shut the valve or to neutralize the starting element of the machine.

For this purpose -I have invented an apparatus wherein an axle carrying a double system of rotary elements is provided to elt'ect a rotary motion and an axial displacement, in order to actuate the element serving to start a machine and atthe same time to cause a connection to be eflected between the axis and a first system or set of elements permitting the regulating machine to intervene in the regulator device.

The two motions equilibrate their speed in the regulator. or the speed of the one of these motions exceeds the other, either in order to maintain the valve or the element serving tostart the machine, open or to close the same and in thevlatter case the regular motion is automatically arrested.

One embodiment of, the invention is'represented in the accompanying drawings.

In the same:

Fig. 1 represents a longitudinal section of the whole regulator.

Figure 2 is a detail elevation of the ke s.

. Figure 3 is a detail elevation of the disk e and its connections.

Figure 4 is a similar. view of thedisk c. Figure 5- is a similar view of the disk e and plate m.

The regulator comprises an axle A BC. The end portion A, B of said axle is square in cross section and the op osite end portion B, C thereof is threade and carries at B a disc a.

Upon the threaded part is arranged a setof rotary elements comprising [a threaded tube into which the end portion B C is upon the tube in order to retain the same in a bearing p. a

A toothed wheel e'is arranged upon the tube, this wheel bearing against the disc 0 and being provided with a square hole f equal to half the thickness of t e disk 0,

plus the thickness of the disk j hereinafter described.

of the thickness of.

These keys, fixed in the holes at and f, a

have their inclined faces placed in such direction that the disc 0 can rotate without takingalong the wheel 6, because in such movement the key It moves the key out of the hole (1 of the disc.

A spring 1' (Fig. 3) is fixed upon the outer face of the toothed wheel in order to main: tain the key 9 in its seat.

A plate j (Fig. it) is placed upon the outer face of the disc 0 and has a cylindrical hole through which the cylindrical part of the key It passes. v

A second set of rotary elements 0', e is placed upon the square part of the axle A y B. A disc l is keyed to the hub member 6' of the disk 0' and has circumferential re-. cesses. Said disk 0 faces the disk (1. r

As shown in Fig. 5- a plate m is provided with vertical slides n and has a curved lower side which'is concentric with the disc ual to the or movetremit with means by which they are suspende from different melting devices a: of

a general conductor of the electric power.

The two supporting bearings p and g permit the wheels 0, e, to rotate when, owing to the push of the keys h, and h the ke s g and 9' have partly left their seats. id bearings sup rt the hub members b and b and prevent ateral shifting motion thereof.

The operation of this improved regulator is as follows. Let it be assumed that the axle ABC is rotated at a given rate of speed in the direction of the arrow r by the toothed wheel e and that the latter is driven by a suitable gear of any source of power such as a hydraulic wheel, steam turbine or the like. Such rotation of the axle by reason of its threaded engagement with the hub member I) of the disk 0 causes the axle to move longitudinally to the right as will be understood, the rotation of the gear 6 being communicated to the disk 0 by the engagement of the key g in the opening of the disk 0 in which thekey h is arranged, said key being maintained in such position by the action of the spring '5'. Such longitudinal movement of the axle causes the same to actuate the valve or other controlling element of the machine so that the latter is started. Movement of the machine is transmitted to the tooth wheel ein the same direction as the arrow 1- and hence the hub member 6 is driven in the same direction by the engagement of the key 9 in the opening in which the key h of the disk 0 is fitted, these keys being held normally in the position shown in Figure 1 by the action of the spring i. As long as the motion of rotation of the hub member b is inferior to that of the axle ABC, the

latter continues its translatory motion AC and continues to open the valve. latter is completely opened previous to the machine having attained its normal speed (the one iven by the regular motion) the axle ABC is-completely moved to the right and the disk a pushes the key it until it has entered entirely. The key It drives the key 9 beyond the disk 0 and hence the disk and the tooth wheel are indepe'fident. The disk 0 taken along by the disk a touching it turns more rapidly than the toothed wheel and hence the placed.

As soon as the slpeedof the toothed wheel e is superior to t e one of the disk 0, the key 9' engages said disk 0. The axle ABC recommences its 'translatory .motion,- but now in the reverse direction. The spring 11 causes the key 9 to entirely enter the disk 0,

spindle isno further dis- If the disk a no longer opposing said motion. Finally, after a number of revolutions of the axle, the whole stabilizes itself. The

two speeds are then equal.

some time after the closing of the valve, the

axle ABC being moved com letely to the left, the disk 0. actuates the ey h in the same manner as it formerly actuated the key h in the instant of opening. Hence the tooth wheel and the disk 0: are independent.

In the event of a general short circuit, the safety-fuses melt and free the blocks 0, which drop and engage in the recesses Z of the disk Z and hence suspend the regular motion. At the same time, the valve is closed, as will be understood.

What I claim, is:

An automatic speed regulator comprising a pair of members mounted for rotation and against lateral movement and each prospring to normally hold said key in such normal position, each member also having a key member extending through and pro- 'ecting from the inner side thereof, said eys and key members having correspondingcam faces at their engaging ends, a shaft extendin through said members and arranged for longitudinal movement, said shaft having a noncircular portion oorrespondingly fitted in one of said members and a threaded portion engaging the other member and also provided with a disk ar-.

TIMOTHEE PIERRE POUGET. 

